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Cortina U4 Women's Bike 28" 57cm 7S - Matt Smooth Gray
- EAN 8719461053686
- Brand: Cortina
- Product Model: 842880
Old, but gold!
The Cortina U4 is our iconic transport bike.
Colorful, robust and cool.
Whether you're going to work or school: easily take your things with you thanks to the handy front carrier.
Let's go!
- 7 Gears
- Rollerbrakes
- Stylish and robust transport bicycle
- Equipped with a sturdy front carrier
- Extra grip with the Cortina Canberra tires
Specifications:
Brand: Cortina
Model: U4
Type: Women's bicycle
Frame height: 57 cm
Color code: UGSW 90040 Matt
Number of gears: 7
Frame type: Women
Gear system brand: Shimano
Braking system: Double handbrake, roller brakes
Gear system type: Hub
Wheel size: 28"
Drive: Chain
Luggage carrier: Rear/Front
Bicycle bell: Yes
Frame material: Aluminum
Suitable for child seat: Rear
Grips: Cortina Dakar
Weight: 23 kg
Model year: 2024
Kickstand: Double-legged kickstand
Stem: Fixed
Handlebar: Yes
Tire type: Cortina Canberra with anti-puncture layer
Lock: AXA Solid Plus ART**
USB charging option: No
Taillight: Union 4309
Headlight: Cortina Amsterdam 18 lux
Lighting power supply: Hub dynamo
Front carrier: Yes
Fork: Fixed
Saddle: Selle Royal Gipsy
Seatpost: Fixed
E-Bike: No
Dress guard: No
Gears: Shimano Nexus 7-speed
Load capacity: 120kg
Tire size: 28 x 1.75
Color: Matt Smooth Gray
Children are generally taught to ride a bike at an early age.
The right size bicycle allows for a comfortable and safe riding position for children and teens, and stimulates maximum performance of the muscles.
Aside from being less tiring and preventing overexertion of the knees, the right size bike encourages regular bike use and cycling in general.
This size is usually based on the wheel diameter.
Children's Bicycle Size Chart | ![]() |
||
Age (Years) |
Clothing Size |
Length | Recommended Children's Bike Size |
2 - 4 | 98 - 104 | ± 95 cm | 12 inch |
3 - 5 | 100 - 106 | ± 100 cm | 14 inch |
4 - 6 | 104 - 110 | ± 105 cm | 16 inch |
5 - 7 | 110 - 116 | ± 110 cm | 18 inch |
6 - 8 | 116 - 122 | ± 115 cm | 20 inch |
7 - 9 | 122 - 128 | ± 122 cm | 22 inch |
8 - 12 | 128 - 140 | ± 130 cm | 24 inch |
10 - 14 | 140 - 152 | ± 145 cm | 26 inch |
This sizing chart for children's bicycles is based on age and length.
Not everyone is the same length at a certain age, so it’s advisable to determine the bicycle size based on length.
The most important factor in determining the right bike size, is the inseam length.
Body Length | Inseam Length | Recommended Bike Size |
![]() |
120 - 140 cm | <52 cm | 16 inch | |
52 - 74 cm | 20 inch | ||
> 74 cm | 24 inch | ||
140 - 160 cm | < 62 cm | 20 inch | |
62 - 80 cm | 24 inch | ||
> 80 cm | 26 inch | ||
> 160 cm | < 74 cm | 24 inch | |
> 74 cm | 26 inch |
Most children that are 120 to 140 cm tall can ride a 20 inch bike, while children between 140 and 160 cm tall can ride a 24 inch bike.
A 26 inch bike is generally suitable for teenagers who are over 160 cm tall.
The right frame height is also very important: it is the first step to finding the correct riding position.
A bicycle frame that is too small or too large can lead to limited height adjustment options, which in turn may lead to an inconvenient height difference between the saddle and handlebars.
Use the inseam length to determine which frame size is right for you.
You can do this by measuring the inside of your leg, from the top of the thigh down to the floor.
Adult Bicycle Size Chart | ![]() |
|
Inseam Length |
Recommended Frame Size | |
≈ 66 cm | 43 cm | |
≈ 74 cm | 48 cm | |
≈ 77 cm | 50 cm | |
≈ 78 cm | 51 cm | |
≈ 80 cm | 52 cm | |
≈ 83 cm | 54 cm | |
≈ 85 cm | 55 cm | |
≈ 86 cm | 56 cm | |
≈ 89 cm | 58 cm | |
≈ 91 cm | 61 cm | |
≈ 93 cm | 65 cm |
Choose the frame size closest to your results.
When in doubt, it’s best to pick the smaller frame size.
If you have any questions about determining the right bicycle size, you can always give us a call or send us an e-mail.
Our team of enthusiastic colleagues is ready to help you.
+31 (0)70 - 300 00 44helpdesk@hollandbikeshop.com

- Drivetrain
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